quick advice on inverter not for my carpc project
I'm going on a trip to Houston. I'll have a rental for a week. I'd love to take my laptop, install iGuidance, and grab my Holux GR-213 GPS Mouse for the trip. Only problem, the battery in my laptop is worthless. Every time I use it, I have to use the ac wall adapter. So, my question is, what is the smallest and cheapest inverter I can get away with if I am just using it for the laptop to run iguidance and a USB GPS mouse. I'd love to go to target and get one of those $25 pos if it would work.